Michael Westen: You're sure this is who you want to be? A mercenary. Betraying his friend. For blood money?
Harlan: (hits him) Yeah. I'm sure.
Michael: That's all I needed to know. (asskicking ensues)
Batman: Don't you understand? I don't want to hurt you. I don't want either of us to end up killing the other. But we're both running out of alternatives... and we both know it. Maybe it all hinges on tonight. Maybe this is our last chance to sort this bloody mess out. If you don't take it, then we're both locked onto a suicide course. Both of us. To the death. It doesn't have to end like that. I don't know what it was that bent your life out of shape, but who knows? Maybe I've been there too. Maybe I can help. We could work together. I could rehabilitate you. You needn't be out there on the edge anymore. You needn't be alone. We don't have to kill each other. What do you say?
(Beat, as the Joker mulls this over)
Joker: No. I'm sorry, but... no. It's too late for that. Far too late.